What types of interviews do surveyors conduct to collect valid information during a survey?

Surveyors utilize both formal and informal interviews to collect valid information during a survey. Formal interviews are structured and follow a specific format, allowing for consistent responses that can be easily compared and analyzed. These interviews often have predefined questions and are conducted in a controlled environment, ensuring that the data gathered is reliable and meets the necessary standards for assessment.

On the other hand, informal interviews allow for a more conversational approach, providing an opportunity to gather insights that might not emerge in a structured setting. This flexibility can lead to a richer understanding of the subject matter, as surveyors can adjust questions based on the flow of the conversation and probe deeper into topics of interest.

Using a combination of both interview types allows surveyors to capture a comprehensive view of the situation or system being assessed, thereby enhancing the quality and validity of the collected data. This approach acknowledges the complexities of human interaction and the diverse contexts in which information can be shared.